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Satellite tracking and site fidelity of short ocean sunfish, Mola ramsayi, in the Galapagos Islands.

Por:

Thys, Tierney M

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ArtículoIdioma: Inglés Tema(s):

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22 597.2

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En: Journal of Marine Biology Vol. 2017 (May 2017), p. 1-10Tema: Ocean sunfishes, with their peculiar morphology, large size, and surface habits, are valuable assets in ecotourism destinations worldwide. This study investigates site fidelity and long-range movements of short ocean sunfish, Mola ramsayi (Giglioli 1883), at Punta Vicente Roca (PVR) off Isabela Island in the Galapagos Islands. Five individuals were tracked between 32 and 733 days using ultrasonic receivers and transmitters. Two of the 5 were also tracked with towed pop-off satellite tags. One travelled to the equatorial front covering 2700 km in 53 days, with dive depths in the upper 360 m at temperatures between 9.2°C and 22°C. During its westward travel, dives extended to 1112 m (the deepest depth yet recorded for Molidae) into temperatures ranging between 4.5°C and 23.2°C. The remaining four individuals demonstrated site fidelity to PVR and were detected at the site between 128–1361 times for a total of 3557 reports. Forty-eight percent of the reports occurred during daytime hours and 52% after dark. Presumed cleaning session durations had a median of 15 minutes and a maximum of nearly 100 minutes. No other ultrasonic arrays around Galapagos or in the Eastern Pacific regional network recorded the presence of tagged individuals. These data are combined with tourist vessel sightings and submersible observations to confirm Punta Vicente Roca as an important sunfish hotspot.

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Existencias ( 2 )
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Imagen de cubierta	Tipo de ítem	Biblioteca actual	Biblioteca de origen	Colección	Ubicación en estantería	Signatura topográfica	Materiales especificados	Info Vol	URL	Copia número	Estado	Notas	Fecha de vencimiento	Código de barras	Reserva de ítems	Prioridad de la cola de reserva de ejemplar	Reservas para cursos
	Artículo	Corley Smith Library Artículos		Galápagos		597.2 THY (Navegar estantería(Abre debajo))					Disponible			2017-2109
	Documento electrónico	Corley Smith Library Colección PDF		Galápagos		597.2 THY 2017 (Navegar estantería(Abre debajo))					Disponible			2021-1772

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Previo								Siguiente
Previo	597.092 FRI 1980 Revision of the Eastern pacific Syngnathidae (Pisces:Syngnathiformes),including both recent and Fossil forms /	597.2 BEE 1941 Fishes from the tropical eastern Pacific (from Cedros Island, lower California, south to the Galápagos Islands and northern Peru) :	597.2 MCM 1999 Three new species of hagfish (Myxinidae, Eptatretus) from the Galápagos Islands /	597.2 THY Satellite tracking and site fidelity of short ocean sunfish, Mola ramsayi, in the Galapagos Islands.	597.3 ACU 2011 Proyecto de investigación de tiburones en la Reserva Marina de Galápagos :	597.3 ACU 2013 First record of three shark species, Odontaspis ferox, Mustelus albipinnis and Centrophorus squamosus, from the Galapagos Islands Marine Biodiversity Records /	597.3 ACU 2013 First record of three shark species, Odontaspis ferox, Mustelus albipinnis and Centrophorus squamosus, from the Galapagos Islands Marine Biodiversity Records /	Siguiente

Ocean sunfishes, with their peculiar morphology, large size, and surface habits, are valuable assets in ecotourism destinations worldwide. This study investigates site fidelity and long-range movements of short ocean sunfish, Mola ramsayi (Giglioli 1883), at Punta Vicente Roca (PVR) off Isabela Island in the Galapagos Islands. Five individuals were tracked between 32 and 733 days using ultrasonic receivers and transmitters. Two of the 5 were also tracked with towed pop-off satellite tags. One travelled to the equatorial front covering 2700 km in 53 days, with dive depths in the upper 360 m at temperatures between 9.2°C and 22°C. During its westward travel, dives extended to 1112 m (the deepest depth yet recorded for Molidae) into temperatures ranging between 4.5°C and 23.2°C. The remaining four individuals demonstrated site fidelity to PVR and were detected at the site between 128–1361 times for a total of 3557 reports. Forty-eight percent of the reports occurred during daytime hours and 52% after dark. Presumed cleaning session durations had a median of 15 minutes and a maximum of nearly 100 minutes. No other ultrasonic arrays around Galapagos or in the Eastern Pacific regional network recorded the presence of tagged individuals. These data are combined with tourist vessel sightings and submersible observations to confirm Punta Vicente Roca as an important sunfish hotspot.

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